EP0716309A3 - Circuit and method of measuring squib resistance - Google Patents

Circuit and method of measuring squib resistance Download PDF

Info

Publication number
EP0716309A3
EP0716309A3 EP95118846A EP95118846A EP0716309A3 EP 0716309 A3 EP0716309 A3 EP 0716309A3 EP 95118846 A EP95118846 A EP 95118846A EP 95118846 A EP95118846 A EP 95118846A EP 0716309 A3 EP0716309 A3 EP 0716309A3
Authority
EP
European Patent Office
Prior art keywords
measuring
circuit
squib resistance
squib
resistance
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
EP95118846A
Other languages
German (de)
French (fr)
Other versions
EP0716309B1 (en
EP0716309A2 (en
Inventor
David M Susak
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Motorola Solutions Inc
Original Assignee
Motorola Inc
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Motorola Inc filed Critical Motorola Inc
Publication of EP0716309A2 publication Critical patent/EP0716309A2/en
Publication of EP0716309A3 publication Critical patent/EP0716309A3/en
Application granted granted Critical
Publication of EP0716309B1 publication Critical patent/EP0716309B1/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60R—VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
    • B60R21/00—Arrangements or fittings on vehicles for protecting or preventing injuries to occupants or pedestrians in case of accidents or other traffic risks
    • B60R21/01—Electrical circuits for triggering passive safety arrangements, e.g. airbags, safety belt tighteners, in case of vehicle accidents or impending vehicle accidents
    • B60R21/017—Electrical circuits for triggering passive safety arrangements, e.g. airbags, safety belt tighteners, in case of vehicle accidents or impending vehicle accidents including arrangements for providing electric power to safety arrangements or their actuating means, e.g. to pyrotechnic fuses or electro-mechanic valves
    • B60R21/0173—Diagnostic or recording means therefor
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
    • G01R31/00—Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere
    • G01R31/28—Testing of electronic circuits, e.g. by signal tracer
    • G01R31/282—Testing of electronic circuits specially adapted for particular applications not provided for elsewhere
    • G01R31/2829—Testing of circuits in sensor or actuator systems
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
    • G01R27/00—Arrangements for measuring resistance, reactance, impedance, or electric characteristics derived therefrom
    • G01R27/02—Measuring real or complex resistance, reactance, impedance, or other two-pole characteristics derived therefrom, e.g. time constant
    • G01R27/14—Measuring resistance by measuring current or voltage obtained from a reference source
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
    • G01R31/00—Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere
    • G01R31/005—Testing of electric installations on transport means
    • G01R31/006—Testing of electric installations on transport means on road vehicles, e.g. automobiles or trucks

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Mechanical Engineering (AREA)
  • Electromagnetism (AREA)
  • General Engineering & Computer Science (AREA)
  • General Physics & Mathematics (AREA)
  • Air Bags (AREA)
EP95118846A 1994-12-05 1995-11-30 Circuit for and method of measuring a resistance Expired - Lifetime EP0716309B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US08/348,631 US5506509A (en) 1994-12-05 1994-12-05 Circuit and method of measuring squib resistance
US348631 1994-12-05

Publications (3)

Publication Number Publication Date
EP0716309A2 EP0716309A2 (en) 1996-06-12
EP0716309A3 true EP0716309A3 (en) 1996-09-25
EP0716309B1 EP0716309B1 (en) 2002-08-07

Family

ID=23368869

Family Applications (1)

Application Number Title Priority Date Filing Date
EP95118846A Expired - Lifetime EP0716309B1 (en) 1994-12-05 1995-11-30 Circuit for and method of measuring a resistance

Country Status (3)

Country Link
US (1) US5506509A (en)
EP (1) EP0716309B1 (en)
DE (1) DE69527694T2 (en)

Families Citing this family (17)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5959538A (en) * 1997-10-15 1999-09-28 Vital Innovations, Inc. Force sensing resistor conditioning circuit
EP1112504B1 (en) * 1998-09-09 2002-07-31 Siemens Aktiengesellschaft Diagnostic circuitry for measuring the resistance and leakage current of at least one electric consumer, especially a primer in a motor vehicle passenger protection system, and a passenger protection system fitted therewith
US6509739B1 (en) 2000-11-08 2003-01-21 Xilinx, Inc. Method for locating defects and measuring resistance in a test structure
DE10345462B4 (en) * 2003-09-30 2012-12-06 Infineon Technologies Ag Arrangement and method for determining the ohmic resistance of an element
EP1582417A1 (en) 2004-03-30 2005-10-05 Dialog Semiconductor GmbH Squib driver for airbag application
CN1329737C (en) * 2004-05-19 2007-08-01 南开大学 Method and device for measuring super conducting film surface resistance
EP1607755A1 (en) * 2004-06-14 2005-12-21 Dialog Semiconductor GmbH Very precise resistance measurement
KR101068909B1 (en) * 2005-06-17 2011-09-30 주식회사 만도 Control circuit of solenoid valve
DE102006017239B4 (en) * 2006-04-12 2011-06-16 Infineon Technologies Austria Ag Differential level shifter with automatic error adjustment
CN102565620B (en) * 2012-02-17 2014-05-28 北京航天自动控制研究所 Low-voltage test circuit and method for initiating explosive device
US8986046B2 (en) 2012-11-29 2015-03-24 Autoliv Asp, Inc. Electrical harness assembly for duplex activation for motor vehicle restraint systems
US9018957B2 (en) 2012-11-29 2015-04-28 Autoliv Asp, Inc. Method and system for diagnostic measurement of motor vehicle restraint system squib loop resistance
US9684021B2 (en) * 2013-07-15 2017-06-20 Infineon Technologies Ag Resistance measurement
US9139155B2 (en) * 2013-09-18 2015-09-22 Freescale Semiconductor, Inc. Squib driver diagnostic circuit and method
DE102013219141A1 (en) 2013-09-24 2015-03-26 Robert Bosch Gmbh Interlock circuit for securing an electrical vehicle electrical system
DE102014210815B4 (en) 2014-06-05 2021-12-16 Robert Bosch Gmbh Control unit for a restraint in a vehicle
DE102018109305A1 (en) * 2018-04-19 2019-10-24 Fogtec Brandschutz Gmbh & Co. Kg Fire-Fighting Equipment

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4518869A (en) * 1982-12-21 1985-05-21 Motorola, Inc. Resistance comparator for switch detection
US5187387A (en) * 1990-06-18 1993-02-16 Kabushiki Kaisha Toyoda Jidoshokki Seisakusho Overcurrent detecting apparatus
JPH06263001A (en) * 1993-02-01 1994-09-20 Fujitsu Ten Ltd Squib inspecting circuit in air-bag system of vehicle

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5059916A (en) * 1990-01-08 1991-10-22 National Semiconductor Corporation Gauge driver for use with a remote sensor and having reduced offset potential response

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4518869A (en) * 1982-12-21 1985-05-21 Motorola, Inc. Resistance comparator for switch detection
US5187387A (en) * 1990-06-18 1993-02-16 Kabushiki Kaisha Toyoda Jidoshokki Seisakusho Overcurrent detecting apparatus
JPH06263001A (en) * 1993-02-01 1994-09-20 Fujitsu Ten Ltd Squib inspecting circuit in air-bag system of vehicle

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
PATENT ABSTRACTS OF JAPAN vol. 18, no. 669 (M - 1725) 16 December 1994 (1994-12-16) *

Also Published As

Publication number Publication date
US5506509A (en) 1996-04-09
EP0716309B1 (en) 2002-08-07
EP0716309A2 (en) 1996-06-12
DE69527694T2 (en) 2002-12-05
DE69527694D1 (en) 2002-09-12

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